Oracle中如何实现高效的批量数据插入操作？

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sql

一、自定义转换函数--ASCII转换为十六进制

create or replace function AscToHex(sIn IN varchar2) RETURN varchar2 ISsTmp varchar2(4000);BEGIN sTmp :=''; FOR i IN 1..LENGTH(sIn) LOOP sTmp :=sTmp || TO_CHAR(ASCII(SUBSTR(sIn, i, 1)), 'XX'); END LOOP; RETURN sTmp;END;

一、自定义转码函数--ASCII转换为十六进制createorreplacefunctionAscToHex(sInINvarchar2)RETURNvarchar2ISsTmpv

一、自定义转码函数

--ASCII转换为十六进制 create or replace function AscToHex(sIn IN varchar2) RETURN varchar2 IS sTmp varchar2(4000); i integer; BEGIN i:1; stmp:; for i in 1..length(sIn) loop sTmp:sTmp||trim(to_char(ascii(substr(sIn,i,1)),XXXX)); end loop; return sTmp; END;

--十六进制转换为ASCII create or replace function HexToAsc(sIn IN varchar2) RETURN varchar2 IS sTmp varchar2(4000); i integer; x integer; BEGIN i:1; stmp:; loop exit when i>length(sIn); x:to_number(substr(sIn,i,2),XXXX); if x>128 then sTmp:sTmp||chr(to_number(substr(sIn,i,4),XXXX)); i:i4; else sTmp:sTmp||chr(to_number(substr(sIn,i,2),XXXX)); i:i2; end if; end loop; return sTmp; END;

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